Pulse Asia also noted that there was a drop in the level of distrust for the 2 bodies: 11 percentage points for UK and 8 points for UN.

The UN, under its previous leader, Secretary General Ban Ki-Moo, had criticized President Rodrigo Duterte's war on drugs, which has seen thousands drug suspects killed in police operations and vigilante attacks.

UN's new Secretary-General António Guterres, who took office in January, has not yet openly criticized the anti-drug campaign.

UK, meanwhile, is in talks to divorce from the European Union (EU), which is currently reviewing whether the Philippines can still qualify for trade incentives in face of the killings under his war on drugs.

TRUST IN US, CHINA, RUSSIA

The latest Pulse survey also showed that trust remained the majority sentiment towards the United States, Japan, Australia and the Association of Southeast Asian Nations (ASEAN) -- but not towards Russia and China.

Duterte hurled expletive-laden speeches against the US under the Obama administration but has tempered his rhetoric upon the rise to the White House of US President Donald Trump, whom the Filipino leader said has expressed support for his war on drugs.

At the same time, Duterte sought to strengthen ties with China and Russia as part of an independent foreign policy.